OP_CAT

OP_CAT is an instruction used in cryptocurrency programming, specifically in the context of Bitcoin script, which is a scripting language for defining how Bitcoin transactions are executed. OP_CAT is designed to concatenate two values, allowing for more complex data manipulation within scripts. It's part of the script operations that enable advanced functionalities, such as creating more flexible smart contracts and enhancing the overall capabilities of decentralized applications (dApps) on blockchain networks.